*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

:root {
  --black: #07080A;
  --dark: #0E1015;
  --dark-2: #151820;
  --dark-3: #1E222D;
  --dark-4: #272C3A;
  --accent: #C8FF00;
  --accent-dim: rgba(200,255,0,0.08);
  --accent-hover: #DFFF4F;
  --white: #F0F2F5;
  --gray-100: #E8EAF0;
  --gray-200: #C8CBD6;
  --gray-300: #8A8FA0;
  --gray-400: #5C6178;
  --gray-500: #3A3F52;
  --text: #F0F2F5;
  --text-dim: #8A8FA0;
  --text-muted: #5C6178;
  --border: rgba(255,255,255,0.06);
  --border-light: rgba(255,255,255,0.1);
  --red: #FF4757;
  --font: 'Outfit', sans-serif;
  --mono: 'JetBrains Mono', monospace;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}

html { font-size:16px; scroll-behavior:smooth; }
body { font-family:var(--font); background:var(--black); color:var(--text); min-height:100vh; -webkit-font-smoothing:antialiased; overflow-x:hidden; }

/* Logo */
.site-logo { position:fixed; top:20px; left:50%; transform:translateX(-50%); z-index:101; text-decoration:none; }
.logo-img { height:48px; width:auto; color:var(--accent); filter:drop-shadow(0 0 16px rgba(200,255,0,0.4)) drop-shadow(0 0 4px rgba(200,255,0,0.25)); transition:opacity var(--transition); }
.site-logo:hover .logo-img { opacity:0.8; }

/* Page Layout */
.page-container { min-height:100vh; display:flex; align-items:center; justify-content:center; padding:90px 24px 60px; }
.page-content { max-width:700px; width:100%; margin:0 auto; }
.slide-center { text-align:center; }
.slide-center .subtitle { margin-left:auto; margin-right:auto; }

/* Typography */
h1 { font-size:2.8rem; font-weight:900; line-height:1.08; letter-spacing:-0.035em; margin-bottom:24px; }
h2 { font-size:2rem; font-weight:800; line-height:1.12; letter-spacing:-0.025em; margin-bottom:16px; }
h3 { font-size:1.1rem; font-weight:700; margin-bottom:16px; color:var(--gray-200); }
.label { font-family:var(--mono); font-size:0.72rem; font-weight:500; text-transform:uppercase; letter-spacing:0.25em; color:var(--accent); display:inline-block; margin-bottom:20px; }
.label::before { content:'// '; opacity:0.4; }
.subtitle { font-size:1.05rem; color:var(--text-dim); line-height:1.8; max-width:520px; font-weight:300; margin-bottom:24px; }
.result-icon { font-size:4rem; margin-bottom:24px; }

/* Calendar Container */
.calendar-container { background:var(--dark-2); border:1px solid var(--border); padding:28px; margin:32px 0 16px; }

.calendar-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:24px; }
.cal-title { font-family:var(--mono); font-size:0.85rem; font-weight:500; color:var(--gray-200); letter-spacing:0.05em; }
.cal-nav { background:var(--dark-3); border:1px solid var(--border-light); color:var(--white); width:40px; height:40px; display:flex; align-items:center; justify-content:center; cursor:pointer; font-size:1.1rem; transition:all var(--transition); }
.cal-nav:hover { border-color:var(--accent); color:var(--accent); }
.cal-nav:disabled { opacity:0.3; cursor:not-allowed; }
.cal-nav:disabled:hover { border-color:var(--border-light); color:var(--white); }

/* Day Tabs */
.day-tabs { display:grid; grid-template-columns:repeat(5,1fr); gap:8px; margin-bottom:24px; }
.day-tab { padding:14px 8px; background:var(--dark-3); border:1px solid var(--border-light); color:var(--white); font-family:var(--font); font-size:0.85rem; font-weight:600; cursor:pointer; text-align:center; transition:all var(--transition); display:flex; flex-direction:column; gap:4px; }
.day-tab span { font-family:var(--mono); font-size:0.68rem; font-weight:400; color:var(--text-muted); }
.day-tab:hover:not(.fully-booked) { border-color:var(--accent); }
.day-tab.active { border-color:var(--accent); background:var(--accent-dim); color:var(--accent); }
.day-tab.active span { color:var(--accent); opacity:0.7; }
.day-tab.fully-booked { opacity:0.35; cursor:not-allowed; }
.day-tab.fully-booked span { color:var(--red); font-weight:500; }

/* Time Slots */
.slots-section { min-height:100px; }
.slots-placeholder { text-align:center; color:var(--text-muted); font-size:0.9rem; padding:40px 0; }
.slots-group { margin-bottom:20px; }
.slots-group:last-child { margin-bottom:0; }
.slots-group-title { font-family:var(--mono); font-size:0.72rem; text-transform:uppercase; letter-spacing:0.15em; color:var(--text-muted); margin-bottom:10px; font-weight:500; }
.slots-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:8px; }

.slot { padding:14px 8px; background:var(--dark-3); border:1px solid var(--border-light); color:var(--white); font-family:var(--mono); font-size:0.8rem; font-weight:500; cursor:pointer; text-align:center; transition:all var(--transition); }
.slot:hover:not(.booked) { border-color:var(--accent); background:var(--accent-dim); }
.slot.selected { border-color:var(--accent); background:var(--accent-dim); color:var(--accent); box-shadow:0 0 20px rgba(200,255,0,0.1); }
.slot.booked { opacity:0.25; cursor:not-allowed; color:var(--text-muted); text-decoration:line-through; background:var(--dark); }
.slot.booked:hover { border-color:var(--border-light); background:var(--dark); }

/* Timezone Notice */
.tz-notice { font-family:var(--mono); font-size:0.68rem; color:var(--text-muted); text-align:center; letter-spacing:0.1em; text-transform:uppercase; margin-bottom:32px; }

/* Booking Form */
.booking-form { border-top:1px solid var(--border); padding-top:32px; }
.form-group { margin-bottom:24px; }
.form-group label { display:block; font-family:var(--mono); font-size:0.7rem; text-transform:uppercase; letter-spacing:0.15em; color:var(--text-muted); margin-bottom:10px; font-weight:500; }
.form-grid { display:grid; grid-template-columns:1fr 1fr; gap:16px; }

input { width:100%; padding:16px 0; border:none; border-bottom:1px solid var(--dark-4); background:transparent; color:var(--white); font-size:1rem; font-family:var(--font); outline:none; transition:border-color var(--transition); }
input:focus { border-color:var(--accent); }
input::placeholder { color:var(--gray-500); font-weight:300; }

/* Buttons */
.btn { display:inline-flex; align-items:center; gap:8px; padding:16px 36px; font-family:var(--font); font-size:0.88rem; font-weight:700; cursor:pointer; border:none; text-transform:uppercase; letter-spacing:0.04em; transition:all var(--transition); }
.btn-primary { background:var(--accent); color:var(--black); }
.btn-primary:hover { background:var(--accent-hover); box-shadow:0 0 40px rgba(200,255,0,0.2); }
.btn-primary:disabled { opacity:0.3; cursor:not-allowed; }
.btn-primary:disabled:hover { box-shadow:none; background:var(--accent); }
.btn-lg { padding:20px 48px; font-size:0.95rem; }

/* Confirmation */
.confirmation-box { background:var(--dark-2); border:1px solid var(--border); padding:28px; margin:24px auto; max-width:480px; text-align:left; }
.conf-item { display:flex; justify-content:space-between; align-items:center; padding:14px 0; border-bottom:1px solid var(--border); }
.conf-item:last-child { border-bottom:none; }
.conf-label { font-family:var(--mono); font-size:0.7rem; text-transform:uppercase; letter-spacing:0.15em; color:var(--text-muted); font-weight:500; }
.conf-value { font-weight:600; color:var(--white); font-size:0.95rem; }

/* Animation */
@keyframes fadeInUp {
  from { opacity:0; transform:translateY(30px); }
  to { opacity:1; transform:translateY(0); }
}
.fade-in { animation: fadeInUp 0.6s ease; }

/* Responsive */
@media (max-width:768px) {
  h1 { font-size:2rem; }
  h2 { font-size:1.6rem; }
  .form-grid { grid-template-columns:1fr; }
  .slots-grid { grid-template-columns:repeat(3,1fr); }
  .page-container { padding:70px 20px 40px; }
  .calendar-container { padding:20px; }
  .day-tab { padding:10px 4px; font-size:0.78rem; }
  .day-tab span { font-size:0.6rem; }
  .conf-item { flex-direction:column; align-items:flex-start; gap:4px; }
}

@media (max-width:480px) {
  h1 { font-size:1.7rem; }
  .slots-grid { grid-template-columns:repeat(2,1fr); }
  .day-tabs { gap:4px; }
  .day-tab { font-size:0.72rem; padding:8px 4px; }
  .btn-lg { padding:18px 32px; font-size:0.85rem; width:100%; justify-content:center; }
}